七年级数学下册计算题大全230.docx

1、七年级数学下册计算题大全230 1(4x25xyx)(3x26xy2x) 5 1 1(xy6y25)(x2xy y29) 7 7 4 1(xyy)(xyx6) 3 5 (9y7x8z2)(2y3x6z2) (8k22k)(4k22k5) ( a22a5b)(7a29a3b) 8x2(6x27x2)(3x8) 5y2(7x2y)(8x28y2) 6(2x29xyx)(8x27xy6x) 7 5 4(xy2y28)(x2xy2y28) 4 3 5 2(xyy)(xyx6) 6 3 (2y8x2z2)(3y3x4z2) (9k27k)(3k29k4) (8a26a5b)( a26a9b) 6x2(

2、x24x2)(3x9) 8y2(6x2y)(5x29y2) 1(6x23xyx)(9x27xy6x) 5 2 1(xy5y25)(x2xy y22) 3 5 5 1(xyy)(xyx3) 6 5 (9y3x4z2)(3y6x6z2) (7k2 k)(6k27k2) (2a22a9b)(6a24a5b) 9x2(8x28x6)(5x4) y2(7x2y)(9x22y2) 2(5x27xyx)(8x23xy8x) 3 7 4(xy7y24)(x2xy9y26) 6 5 3 7(xyy)(xyx3) 4 8 (6y2x z2)(8y7x5z2) (8k22k)(5k29k2) (8a28a9b)(4

3、a29a3b) 6x2( x28x5)(3x2) 2y2( x2y)(5x29y2) 1(5x23xyx)(9x27xy7x) 8 1 5(xy2y27)(x2xy3y29) 8 4 4 1(xyy)(xyx3) 5 3 (3y9x8z2)(9y2x z2) (8k22k)(4k2 k9) (4a26a2b)(3a29a3b) 3x2(4x28x1)(6x4) y2(7x2y)(7x24y2) 1(7x23xyx)(8x2 xy7x) 6 5 1(xy3y22)(x2xy6y23) 4 3 1 1(xyy)(xyx1) 3 7 (4y6x6z2)(5y8x8z2) (6k26k)(3k29k7

4、) (8a22a4b)(7a26a5b) 6x2(7x22x5)(4x4) 6y2(6x2y)(3x24y2) 7(2x29xyx)(5x25xy6x) 6 1 1(xy y21)(x2xy6y24) 5 7 2 6(xyy)(xyx2) 3 7 (3y x2z2)(3y4x2z2) (9k22k)( k22k9) (2a28a3b)(6a22a9b) 2x2(2x29x2)(4x7) 2y2(6x2y)(6x22y2) 7(9x23xyx)( x24xy3x) 6 4 1(xy y25)(x2xy y24) 3 4 7 6(xyy)(xyx2) 8 7 (2y2x2z2)( y9x2z2)

5、(2k29k)(5k25k5) (6a26a3b)( a23a b) 7x2(9x2 x5)(9x4) 6y2(3x2y)(9x28y2) 4(6x23xyx)(3x2 xy8x) 5 1 1(xy8y29)(x2xy9y23) 5 4 1 8(xyy)(xyx7) 7 7 (7y3x6z2)(8y6x8z2) (6k26k)(7k28k3) ( a28a4b)(7a2 a7b) 2x2(3x25x2)(7x8) 5y2(5x2y)(3x29y2) 1(6x25xyx)(9x25xy9x) 6 3 5(xy5y25)(x2xy6y22) 4 6 1 1(xyy)(xyx6) 6 8 (5y8x

6、6z2)( y2x8z2) (9k24k)(3k23k5) (3a2 a5b)(8a26a3b) 6x2(2x25x4)(5x1) 7y2(4x2y)(2x24y2) 1(9x26xyx)( x22xy8x) 8 4 1(xy4y24)(x2xy9y21) 3 8 7 4(xyy)(xyx7) 8 5 (2y5x8z2)(6y3x4z2) ( k26k)(4k27k3) (7a24a9b)(7a24a9b) 7x2( x26x6)(5x2) 7y2(5x2y)(9x2 y2) 1(6x25xyx)(6x27xy5x) 5 1 7(xy8y26)(x2xy8y22) 8 8 4 9(xyy)(xyx1) 5 8 (6y3x4z2)( y7x9z2) (9k25k)(8k24k6) (9a2 a5b)(4a23a4b) 7x2(9x2 x3)(2x4) y2(2x2y)(7x2 y2) 1(6x22xyx)( x25xy7x) 4 1 4(xy8y23)(x2xy y25) 8 5 6 7(xyy)(xyx5) 5 8 (8y7x4z2)(5y2x5z2)